The statement is true. Response generalization does refer to unprogrammed changes in similar behaviors when a target behavior is modified.
Response generalisation is a term used to describe how a behavior-strengthening contingency spreads to other responses that are similar to the target response that produced the behavior-strengthening consequence in B.F. Skinner's operant conditioning theory. When a process increases the chance of a certain operant response results in an increase in similar responses, this is referred to as response generalisation. It is not necessary for the other responses to which response generalisation extends to resemble the reinforced operant in terms of topography or physical characteristics. Members of the same operant response class often make up the additional responses that are enhanced in response generalisation.
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